<template>
	<view>
		<view class="goods-list">
			<view v-for="(item,i) in goodsList" :key="i" @click="gotoDetail(item)">
				<my-goods :item="item"></my-goods>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				//节流阀
				isloading:false,
				queryObj: {
					query:'',
					cid:'',
					pagenum:1,
					pagesize:10
				},
				goodsList:[],
				total: 0 ,
				defaultPic:'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png'
			};
		},
		onLoad(options){
			this.queryObj.query = options.query || ''
			this.queryObj.cid = options.cid || ''
			console.log(this.queryObj)
			this.getGoodsList()

		},
		methods: {
			async getGoodsList(cb){
				this.isloading = true
				//打开节流阀
				const {data:res} = await uni.$http.get('/api/public/v1/goods/search',this.queryObj)
				this.isloading=false
				//关闭下拉刷新的回调函数
				cb&&cb()
				if(res.meta.status !== 200) return uni.$showMsg()
				this.goodsList = [...this.goodsList,...res.message.goods]
				this.total = res.message.total
				//关闭节流阀
			},
			gotoDetail(goods){
				uni.navigateTo({
					url:'/subpkg/goods_detail/goods_detail?goods_id='+ goods.goods_id
				})
			}
		},
		onReachBottom(){
			if(this.queryObj.pagenum*this.queryObj.pagesize>=this.total){
				uni.$showMsg('没有更多了！')
				return
			}
			//由于用户反复上下滑动防止发送额外数据请求
			if(this.isloading){
				return
			}
			this.queryObj.pagenum++
			this.getGoodsList()
		},
		onPullDownRefresh() {
			//重置关键数据
			this.queryObj.pagenum = 1
			this.total = 0
			this.isloading = false
			this.goodsList = []
			//重新发起数据请求
			this.getGoodsList(()=>{uni.stopPullDownRefresh()})
		}
	}
</script>

<style lang="scss">

</style>
